Search found 165 matches

They look pretty good, I may try them. I am running direct soldered cables for now and TBH with the freezing temperatures I'm not adding many miles to the bike I almost laced the Q128C in a new rim with some nice Sapim spokes. After this wheel is true and tested I'll look into the cabling again. It ...

Awesome. Two more days of thinking it over and I have decided to: *give up on the idea of upgrading the frame. Turns out I'd need to spend quite a bit to get a meaningful upgrade *buy a handlebar extension to fit the headlight and water bottle on the front. This would make space for other bits on th...

Hi amberwolf, thanks for the advice. I did a bit of googling to unpack :thumb: My old DC battery connectors were PP75, the battery to charger still has the same. I didn't know the name of them, so thanks for that. The HIGO I found that ship to the UK are a bit pricey. It may be that they are the one...

Hi all, I'd very much appreciate some direction. Here's the problem: my ebike, based on an em3ev kit with infineon 9-fet and 9C motor, has just turned 5. It's been 4 good years in which I commuted and ridden for thousands of miles. This year, it has been a bit dodgy and I'm taking advantage of the w...

Thanks for the wiring diagram, I think I figured it out: https://photos.app.goo.gl/Je9DhcYdPk3vp2JZ2 The PAS logo appears on the display: https://photos.app.goo.gl/0vaR4DwRxYRx4Qi12 But: *once the PAS is connected, the throttle doesn't work anymore (normal?) *the motor isn't spinning I wonder if som...

Hello team, I need a hand. It looks like I'm so close to having this setup working, but not quite. I have - Q100H, S06S, S-LCD5, a throttle and a PAS sensor powered by a 24V battery. What works - everything except the PAS assistance. I tried following the wiring diagram linked on the website, but th...

I get your point, but to understand where I come from I should have said I've tested my EM3EV Infineon 4110 controller that shouldn't be compatible with a 24V battery with exactly this. If you dial-in the correct cut-off VDCmin it works fine.

Hello, I wonder what the LVC values may be on the two controller bellow and if it ts adjustable: S06s: https://bmsbattery.com/ebike-kit/546-s06s-250w-torque-simulation-sine-wave-controller-ebike-kit.html S09s https://bmsbattery.com/ebike-kit/553-s09p-500w-torque-simulation-square-wave-controller-ebi...

I'm thinking of the same sort of purchase, but I haven't found a good alternative. Other on the forums have pointed out that buying more motors tends not to raise shipping costs a lot. I tried and the second motor adds 50% shipping cost 5roughly°, while the third doesn't add any shipping cost. The q...

I have seen many motors and there's one thing that is sure - lams aren't perfectly insulated - ever. Even if they're not yet mounted on a shaft or in a case, put a multimeter on the edges to measure resistance from left to right and you'll find a high, but not infinite resistance. The reason why we ...

Hi all, I'm looking for a new controller. I have used for years em3ev's 9-FET Infineon 4110, but I haven't really searched for a controller since 2012, maybe you can help me. There are a few features that I like on the Infineon 4110 as it's not just a dumb DC-AC converter. Here's a very short "what ...

Hey, I just went out for a test drive of my new pack. It's in a very "alpha" stage, basically just 12 cells and some conectors. The pack will be a 15s1p of LG HG2. For now it contains just 10 HG2s and 2 Samsung 25R I have around the house. The connectors work, it powers the bike at about 100W, happy...

Thanks guys, it's really helpful. I'm not sure I want to go for a Q128 because of the added weight. Still, I'll play around with the shipping options and if it ,akes sense I'll add a Q128C@201RPM to the bunch - the added torque of the Q128 along with the 260RPM speed do make a lot of sense, especial...

Hi Drunkskunk, thanks for the advice. Since I haven't yet decided on a particular connector, I will take your advice and get that anti spark you linked. It's not that I dislike the spark so much, but if for a few extra $ there is a complete solution available, why not try it?

Hi guys, help me out with a sanity check. I'm building a 15s1p LG HG2 battery pack and I wonder if I need a pre-charge circuit. My back of the napkin calculations with 63V max and 0.3Ohm (20mOhm per cell) gives an inrush current of 210A. I am obviously neglecting a few contact resistance mOhms here ...

Hi scooterman, I was reading your thread, nice ride. Now the bike I'm converting runs on 700x23c. I thought in American numbers it's a 28inch, looks like I'm wrong and it's a 29? The highest crank ratio I have is 48x13 and yes at 25mph it spindle very quickly. I can do that and keep it up for a whil...

Hello ebiker world In the last few monts at work I tested many many batteries and once the cells finihed the testing programme, my boss was happy enough to give them to me. I want to build a 15s1p LG HG2 pack, but obvioulsy aside from the cells I need a few other bits. I need some suggestions for BM...

Hi d8veh, There are a few things missing, yes. Here's the full setup as I see it now: *28" wheel on probably a 700Cx23C - I may go for a 28C rear if the 23C is unconfortable *the bike I mean to use has a wide spaced 8 gear shimano sora group; I tested a 10 speed SRAM equipped wheel if it fits in the...

I don't think police know one way or the other, but in case of a serious crash I can see the insurers trying everything to weasel out as anything above legal is considered a motorcycle and needs special insurance. Your bike looks neat, very clean. It hardly looks like an ebike. I'm half thinking, if...

Thanks motomech, we're getting there. I'm thinking I may keep the ebike as legal as possible, so ideally the controller will have an option for a "legal mode". If I get over 16 it'll be just because I pedalled; normally I don't really any assistance above 16. The fact the 200RPM@36V wind could do ov...

Ok, thanks. It's a bit clearer. I also found a nice article at the ever useful Sheldon Brown about freewheels and cassettes: http://sheldonbrown.com/free-k7.html To come back to the Q-s: *the H has better magnets than the vanilla, thus better torque *the C has a cassette freehub integrated *they all...